Button-blank-cutting machine



4 Sheets-Sheet l (No Model.)

w. A. PENDRY. BUTTON BLANK CUTTING MACHINE.

No. 601,675. Patented Apr. 5, 1898.

LELT

WITNESSES THE NORRIIS PETERS ca. PHOTO-LUNG WASHINGTON. o. c.

4 Sheets-Sheet 2.

(No Model.)

W. A.-PENDRY. BUTTON BLANK CUTTING MACHINE.

Patented Apr. 5, 1898.

(No Model.) 4 SheetsSh ee1z 3.

W. A. PENDRY.

BUTTON BLANK CUTTING MACHINE. No. 601,675. Patented Apr 5, 1898.

(No Model.) 4 Sheets-Sheet 4.

W. A. PENDRY.

BUTTON BLANK CUTTING MACHINE.

No. 601,675. PatentedApr. 5,1898.

1 3 WIVES BEE IW'VEWYOR a 4 40 orney v QM% Kw/M UNITED STATES [ATENT Er ca.

BUTTON-BLANK-CUTTING MACHINE.

SPEQIFIGATION forming part of Letters Patent No. 601,675,,"dated April 5, 1898.

Application filed April 5, 1897. Serial No. 630,797. (No model.)

To all whom it may concern.-

Be it known that 1, WILLIAM ALLEN PEN- DRY, a citizen of the United States, residing at Detroit, county of Wayne, State of Michigan, have invented a certain new and useful Improvement in Button-Blank-Outting Machines; and I declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the and claimed, and illustrated'in the accoinpa nying drawings, in which- Figure 1 is a side elevation. 'Fig. 2 is a rear elevation. Fig. 3 is a vertical section through portions ofthe device and on a somewhat-enlarged scale. Fig. 4 is a plan view. Figs. 5 and 6 are detail views of the feedingcams. Fig. 7 is a detail view of the clutch to govern the feed-pulley. Fig. 8 is a sectional view of the clutch mechanism. Fig. 9 is a front elevation. Fig. 10 is a detail view of one ,of the bell-cranks. Fig. 11 is a vertical section of a portion of the table. Fig. 12 is a detail view of the basket.

My invention has in view more particularly an automatic button-blank-cutting machine of superior efficiency and economy of opera-; tion, savinglabor and accomplishing the work in a more rapid and satisfactory manner than has hitherto been accomplished'by machines of this class. i

I carry out my invention as follows: -Arepresents any suitable support provided with a bed or table A.

A denotes portions of the supporting-framework.

B denotes a driving-shaft preferably provided with cone driving-pulleys, as indicated at B. These pulleys may be belted with cone-pulleys in awell-known manner upon a counter-shaft. (Not shown.)

C denotes a feed-shaft provided with cone pulleys O, which may be belted to a countershaft in a customary manner. The shaft 0 isconstructed with a worm (indicated in dotted lines in Fig. 1 atO meshing with a wormgear 0 upon a shaft 0 The shaft 0 is provided with cams D- and E, the cam vD being designed to actuate a mandrel F and the cam B being designed to actuate a push-bar G.

The mandrelF is rotatable and reciprocatory in boxes A of the framework A Within the mandrel is located a plunger II, carrying at its lower end a tubular saw J. At the lower end of the mandrel is a chuck F, provided with jawsfand a cap f. .The jawsf have a wedge-shaped engagement against the adjacentinner face of the mandrel and bear against the saw. It is evident that byscrewing the cap upon the mandrel any suitable tension can be given to said jaws of the clutch upon the saw. To prevent injury to the same by too great a tension being applied, I provide a plug J within the saw, said plug provided with an orifice through which the push-bar G may reciprocate. The location of the plunger may be controlled as to distance in any suitable manner. As shown, the plunger is constructed with a series of recesses or holes F a bolt or pin F being provided to engage the plunger in said recesses. As the saw is sharpened or wears it will be obvious that the plunger must be lowwhich projects a screw orpin f passing through the hub F of the gear F Upon the framework A is fulcrumed, as shown at k, a bell-crank K, engaged at one extremity with the mandrel and at the opposite extremity provided with a wiper, as at K, to ride upon the cam D, and by which cam said bell-crank is actuated. It will be obvious that when the wiper is raised by the cam the mandrel will be forced downward, L is a bell-crank, also fulcrumed, as indicated at Z, upon the framework A one end being connected with a yoke M, engaged with the upper end of the push-rod G. N is an'addit-ional at n, riding upon the cam E. The bell-crank N is united to the bell-crank L by a connecting link or bar N. It will be obvious that as the wiper n ascends, the yoke M, carrying the push-rod G, will be forced downward.

The yoke M is jointedly connected with the adjacent end of the bell-crankL, as at Z. A nut G- is provided at the upper end of the push-rod G to hold the push-rod in engagement with the yoke. By unscrewing said nut from the yoke the push-rod may be withdrawn, when the yoke may be thrown to one side, permitting the removal of the plunger from the mandrel whenever it may be desired to sharpen or to renew the saw.

P denotes a clutch upon the feed-shaft to engage the feed-pulleys C, said clutch being actuated by a foot-lever P, suitably connected therewith.

It will be obvious that in feeding the shell from which the blanks are to be cut to the saw the shell may not always be fed in just the desired position, and it will-be desirable to prevent the descent of the mandrel and of the push-rod, thereby giving opportunity to change the position of the shell. I provide for this by the construction and operation of the clutch, thereby enabling the operator to stop when the saw is'operating upon a thick portion of the shell as it is liable to be choked up by the powder in cutting, rendering it necessary to retract the saw to clear it, and the kerf in the shell, of powder. This may be effected by making the shaft C reciprocatory in its bearings a, so as to carry the cams D and E out from under the corresponding f This may be done in any suitable wipers. manner, as by means of a bell-crank Q, fulcrumed as at q, said bell-crank being connected in any suitable manner with a foot' lever Q. The bell-crank Q, and consequently i the shaft 0 may be automatically retracted in any suitable manner, as by a retractingspring Q The mandrel and push-rod may also be retracted automatically in any suitable manner, as by springs K and M I prefer to make various parts of the device self-retracting in any proper manner. The

foot-lever P may beretracted by a spring P The bed of the table is provided with a tubular-die a, through which the saw may reciprocate and over which the blank is out, the blank being forced out from the tubular saw by means of a push-rod G.

In the support A, I prefer to locate a wire basket, (indicated at R,) the upper extremity of thebasket being provided with a rim R, fitting snugly into the support A, the basket being removable by opening a door A provided upon the support. I also provide a narrow inlet-openin g, as indicated at S, which may be covered with wire-cloth and with a removable slide or cover S to govern the amount of air admitted therethrough. More or less air will obviously be admitted through the opening in the die, and an additional supply of air may be admitted within the suptherethrough while the button-blanks are retained therein. By this means the blanks may be efficiently separated from the chips and dust without any hand-labor. The rim R of the basket should fit snugly within the I support A, so that the air will be compelled to pass through the basket.

While I have shown automatic devices for 1 forcing the saw and the push-rod to the work, I do not limit myself solelythereto.

My invention contemplates the employment of a long plunger and the use of a long tubular saw engaged therewith made adjustable in the mandrel and removable from its upper end. It will be apparent that by the use of a long tubular saw it may all be fed j down to the work as it wears, thereby pre- 5 venting waste heretofore common in the use of shorter saws, inasmuch as it is impractijcable to use a saw after it has been worn down to within a given distance from its up per extremity.

My invention contemplates the provision l ofarm-rests V adjacent to the bed of the-table or support, on which the arms of the operator may conveniently rest in attending the machine and in feeding the shells to the I cutter.

What I claim as my invention is 1. In a button-blank-cutting machine, the

combination of a supporting-frame, a rota- ;table mandrel sleeved through a portion of 1 said frame, a plunger within the mandrel and carried thereby, means to simultaneously re- 5 ciprocate the mandrel and plunger, a saw car- Eried by the plunger within said mandrel, a ,push-bar within the plunger, and means to I reciprocate the push-bar, said mandrel projecting downward about the saw toward its lower end and provided at its lower end with a chuck to engage about the saw, the means to reciprocate the mandrel and plunger, and the means to reciprocate the push-bar acting in successive order, for the purpose set forth.

2. In a button-blank-cutting machine, the

, combination of a rotatable mandrel, a plunger within the mandrel and carried thereby,

a saw carried by the plunger within said man-' 1 drel, a push-bar within the plunger, a rotatable shaft, a bell-crank: actuated from said shaft to simultaneously reciprocate the 'mandrel and the plunger, and an additional bellcrank actuated by said shaft to reciprocate the push-bar, said mandrel projecting downward about the saw toward its lower end and provided at its lower end with a chuck to engage about the saw, the bell-crank to recipj rocate the mandrel and plunger, and the bell- ;crank to reciprocate the push-bar acting in successive order, for the purpose set forth.

3. In abutton-blank-cutting machine,- the,

combination of a rotatable mandrel, a plunger within the mandrel, a push-bar Within the plunger, a rotatable shaft, cams mounted upon said shaft, bell-cranks connected the one with the mandrel and the other with the push bar, said bell-cranks actuated by the corresponding cams upon said shaft, and means to a throw said cams out of operation with said bell-cranks, substantially as described.

at. In a button-blankecutting machine, the combination of a supporting-frame, a plunger, a tubular saw carried by the plunger, a rotatable mandrel sleeved through a portion of said frame carrying said plunger therewithin and projecting downward about the saw at its lower end, a chuck carried by the mandrel located about the, lower end of the saw to engage and hold the saw, a plug within the saw to prevent too great tension of the a cuttercarried by the plunger within the mandrel, a driving-shaft geared with the mandrel to sim ultaneously rotate the mandrel and 1 plunger, a push-bar Within the plunger, means to simultaneously reciprocate the mandrel and plunger, and means to reciprocate the push-bar, said mandrel projecting downward about the saw toward its lower end and provided at its lower end with a chuck to engage about the saw, said mandrel and plunger and said push-bar made reciprocatory in successive order, substantially as set forth.

6. In a button-blank-cutting machine; the

1 combination of a mandrel, a plunger projecting into the upper end of the mandrel and carried by the mandrel therewithin, means to simultaneously rotate the mandrel and plunger, a tubular saw engaged with the lower end of. the plunger and projecting through the lower end of the mandrel, a push-bar within the plunger and saw, and automatic mechanism to simultaneously feed and to retract the I mandrel and plunger, and automatic mechanism to reciprocate the push-bar, said mandrel and plunger and said push-bar reciprocated in successive order, substantially as described.

7. In a button-blank-cutting machine, the

I combination of a mandrel, a plunger carried by the mandrel therewithin, a cutter carried by the plunger, means to rotate the mandrel and plunger, a push-bar within the spindle, a feed-shaft provided with a worm, a shaft 0 provided with a worm-gear meshing with a worm on the feed-shaft, cams upon the shaft 0 a bell-crank actuated by one of said cams to simultaneously reciprocate said mandrel and plunger, an additional bell-crank actuated by the other of said camstoreciprocate the push-bar, and means to throw the cams out of operation, substantially as set forth.-

8. In a button-blank-cutting machine, the combination of a mandrel, a plunger carried by the mandrel therewithin, means to rotate the mandrel and plunger, a saw carried by the plunger, a push-bar within the mandrel, a feed-shaft,a shaft 0 provided with cams and geared with the feed-shaft, a bell-crank actuated by one of said cams to simultaneously feed the mandrel and plunger, an ad:

ditional bell-crank actuated by the other of said cams to. reciprocate the push-bar, and means to throw said cams vout of operation, substantially as described.

' 9. In a button-blank-cutting machine, the

combination of amandrel, a plunger .carried by the mandrel therewithin, a cutter carried bysaid plunger, means to rotate the mandrel and plunger, a push-barwithin the plunger,

a feed-shaft provided with a worm, a shaft 0 geared with said worm and provided with cams, a bell-crank actuated by one of said cams to simultaneously feed the mandrel and other of said cams to reciprocate the pushbar, said bell-cranks provided with Wipers 10. In abutton-blank-cutting machine, thecombination of a mandrel, a plunger carried by themandrel therewithin, a saw carried by the plunger, a push-bar within the plunger, means to rotate the mandrel and plunger, driving devices to successively feed the cutter and, the push-bar to the work, and means to longitudinally adjust and hold the plunger within the mandrel to adjust the saw to the work, said mandrel projecting downward about the saw toward its lower end and provided at its lower end with a chuck to engage about the saw, substantially as set forth.

11. In a button-blank-cutting machine, the combination of a rotatable mandrel, a plun- "plunger, and a bell-crank actuated by the v ger carried by the mandrel therewithin,a tulower end with a chuck to engage about the saw, substantially as described.

12. In a button-blank-outting machine, the combination of a rotatable mandrel, a cutter, a push-bar, a rotatable shaft 0 provided with cams mounted thereupon, bell-cranks actuated by said cams to feed the cutter and the push-bar to thework, and means to reciprocate said shaft to carry the cams out of operation with said bell-cranks and to retract the same, substantially as described.

13. In a button-blank-cutting machine, the

combination of a mandrel, a cutter, a pushbar, a rotatable shaft provided. with cams mounted thereupon, bell-cranks actuated by said cams to feed the cutter and thepush-bar to the work, a bell-crank and foot-lever conneoted with said shaft to force the cams out of operation with the bell-cranks, substantially as described.

14. In a button-blank-cutting machine, the combination of a mandrel, a plunger carried by the mandrel therewithin, a cutter carried j by the plunger, a push-bar within the plunger, a feed-shaft, a shaft 0 geared with the cutting machine, of a support, a removable open-work basket having an air-tight engagement within the support, and means to exhaust air through said basket to separate the foreign matter from the blanks, substantially as and for the purpose described.

16. In a button-bl'ank-cutting machine,the combination of a support provided with a holport whereby air will be drawn through the" die and through the basket into the exhaustpipe, substantially as and for the purpose described.

17. The combination with a button-blankcutting machine provided with a hollow support and with a hollow die opening through said support, of an open-workreceptacle located within said support beneath said die for receiving the blanks, an exhaust-pipe, and means to exhaust air through said die and receptacle into said exhaust-pipe, whereby the foreign matter will be separated from the blanks, as set forth.

18. In abutton-blank-cutting machine, the combination of a rotatable mandrel, means to reciprocate the mandrel, a plunger within the mandrel, and a saw projecting within the mandrel and carried by the plunger,said plunger with its saw removable from the upper end of the mandrel, substantially as described.

19. In a button-blank-cutting machine, the combination of a rotatable mandrel, means to reciprocate the mandrel, a plunger within the mandrel, a saw projecting within the mandrel attached to the lower end of the plunger, and means to longitudinally adjust and positively hold the plunger with the saw within the mandrel in a desired position of adjustment, substantially as described.

20. In a button-blank-cuttin g machine, the combination of a rotatable mandrel, means to reciprocate the mandrel, a plunger located within the mandrel, a saw' projecting within the mandrel engaged with the plunger,a chuck to engage the saw toward its lower extremity, and additional means to adjust and hold the plunger and saw in desired positionof adjustment within the mandrel, substantially as described.

21. In a button-blank-cutting machine, the combination of a rotatable'mandrel, meansto reciprocate the mandrel, an elongated plunger therewithimanelon gated tubular saw projecting within the mandrel engaged with the plunger, and means to adjust and hold the plunger withinxthe mandrel in a desired position of adjustment, said plunger and saw removable from the upper end of the mandrel, substantially as set forth.

22. In a button-blank-cutting machine, the

combination of a rotatable mandrel, a plunger therewithin, a tubular saw carried by the plunger, a chuck provided with jaws having a wedge-shaped engagement against the adj acent inner face of the mandrel, and bearing against the saw, and with a cap having a screw-threaded engagement upon the' mandrel to give a desired tension of the chuck upon the saw, a plug within the saw to prevent too great a tension of the chuck upon the saw, a push-bar reciprocatory through said plug, and means to reciprocate themandrel and the push-bar, substantially as set forth.

In testimony whereof I sign this specifica- I N. S. WRIGHT, MARY HIoKEv. 

